Hello and welcome to PC Help Forum.
Lets see if we can get you up and running so you can shame dads laptop.
Ok its Virginmedia and what wireless router are you using?
Did you use wireless network setup wizard?
Have you updated your wireless router cards driver on the laptop?
What speed is your internet?4 meg?or more?
Click
Start, click
Control Panel, click
Network and Internet Connections, and then click
Network Connections.
Click the wireless network connection icon, and then, under
Network Tasks, click
View available wireless networks.
Choose the wireless network from the list that appears, and then click
Connect.
This network name maybe the name dad used to install network ie wirless router.
Or
Open Network and Sharing Center by clicking the
Start button

, clicking
Control Panel, clicking
Network and Internet, and then clicking
Network and Sharing Center.
If network discovery is off, click the arrow button

to expand the section, click
Turn on network discovery, and then click
Apply.

If you are prompted for an administrator password or confirmation, type the password or provide confirmation.